:root {
    --primary-color: #2563eb;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #475569;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 2rem;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.status-bar {
    display: flex;
    gap: 24px;
    align-items: center;
    flex-wrap: wrap;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: pulse 2s infinite;
}

.status-dot.online {
    background: var(--secondary-color);
}

.status-dot.offline {
    background: var(--danger-color);
}

.status-dot.connecting {
    background: var(--warning-color);
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}

.timestamp {
    margin-left: auto;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.dashboard {
    display: grid;
    gap: 24px;
}

.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.service-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.service-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.service-port {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.service-status {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
    display: inline-block;
}

.service-status.online {
    background: rgba(16, 185, 129, 0.2);
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
}

.service-status.offline {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.service-status.checking {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.2s;
}

button:hover {
    background: #1d4ed8;
}

button:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--primary-color);
    padding: 12px 24px;
    font-size: 1rem;
}

.coordinate-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.coord-item {
    background: var(--bg-secondary);
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.coord-item label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: block;
    margin-bottom: 4px;
}

.coord-item span {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--secondary-color);
}

#coordinate-chart {
    width: 100%;
    height: 200px;
    background: var(--bg-secondary);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}


.mqtt-command {
    margin-top: 16px;
}

.command-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input {
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.mqtt-response {
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    min-height: 50px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
}

.mqtt-response.success {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

.mqtt-response.error {
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.data-response {
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    max-height: 400px;
    overflow-y: auto;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
}

.data-response.success {
    border-color: var(--secondary-color);
}

.data-response.error {
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.data-response table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.data-response th,
.data-response td {
    padding: 8px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-response th {
    color: var(--primary-color);
    font-weight: 600;
}

.data-response td {
    color: var(--text-primary);
}

.data-response tr:hover {
    background: var(--bg-card);
}

.map-link {
    color: var(--primary-color);
    text-decoration: none;
    word-break: break-all;
}

.map-link:hover {
    text-decoration: underline;
}

.api-endpoints {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.endpoint-group h4 {
    color: var(--primary-color);
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.endpoint-group ul {
    list-style: none;
}

.endpoint-group li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.endpoint-group li:last-child {
    border-bottom: none;
}

.endpoint-group code {
    background: var(--bg-secondary);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--secondary-color);
    font-family: 'Monaco', 'Courier New', monospace;
}

.log-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 16px;
    height: 300px;
    overflow-y: auto;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
}

.log-entry {
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color);
    opacity: 0;
    animation: fadeIn 0.3s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.log-entry:last-child {
    border-bottom: none;
}

.log-entry.info {
    color: var(--text-primary);
}

.log-entry.success {
    color: var(--secondary-color);
}

.log-entry.warning {
    color: var(--warning-color);
}

.log-entry.error {
    color: var(--danger-color);
}

.log-controls {
    margin-top: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.log-controls label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

footer {
    text-align: center;
    padding: 24px;
    margin-top: 40px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 12px;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .api-endpoints {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}